Saved in:
| Main Authors: | , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.02469 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912443642413056 |
|---|---|
| author | Ominato, Yuya Mochizuki, Masahito |
| author_facet | Ominato, Yuya Mochizuki, Masahito |
| contents | We theoretically discover possible dc-current induction and high-harmonic generation from photodriven chiral fermions in B20-type semimetals irradiated with circularly polarized light as nonlinear optical responses with several unconventional properties. First, we find multiple sign changes of the induced bulk dc photocurrent as a function of light parameters, which is ascribed to the nature of asymmetric photon-dressed bands in chiral systems. Moreover, we observe a parity-dependent directivity of high-harmonic generation where the odd- and even-order harmonics have intensities only in directions perpendicular and parallel to the polarization plane, respectively, which can be understood from dynamical symmetry of the present photodriven chiral systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_02469 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Theory of Photocurrent and High-Harmonic Generation with Chiral Fermions Ominato, Yuya Mochizuki, Masahito Materials Science Optics We theoretically discover possible dc-current induction and high-harmonic generation from photodriven chiral fermions in B20-type semimetals irradiated with circularly polarized light as nonlinear optical responses with several unconventional properties. First, we find multiple sign changes of the induced bulk dc photocurrent as a function of light parameters, which is ascribed to the nature of asymmetric photon-dressed bands in chiral systems. Moreover, we observe a parity-dependent directivity of high-harmonic generation where the odd- and even-order harmonics have intensities only in directions perpendicular and parallel to the polarization plane, respectively, which can be understood from dynamical symmetry of the present photodriven chiral systems. |
| title | Theory of Photocurrent and High-Harmonic Generation with Chiral Fermions |
| topic | Materials Science Optics |
| url | https://arxiv.org/abs/2503.02469 |